Topographic LS factor for RUSLE

slope<0.09:  S=10.8sin b + 0.03
slope>=0.09: S=16.8sin b -0.50
short slopes: S=3.0(sin b)**0.8

L=(l/72.6)**m
m=beta/(1+beta), where beta is ratio of rill/interill erosion



 

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